package com.kylin.lock;

//死锁：多个线程互相抱着对方需要的资源同时又请求对方的资源，然后形成僵持
public class TestDeadLock {
    public static void main(String[] args) {
        MakeUp g1 = new MakeUp(0, "灰姑凉");
        MakeUp g2 = new MakeUp(1, "白雪公主");

        g1.start();
        g2.start();
    }
}


//口红
class Lipstick {

}

//镜子
class Mirror {

}

class MakeUp extends Thread {

    //需要的资源只有一份，用static来保证只有一份
    static Lipstick lipstick = new Lipstick();
    static Mirror mirror = new Mirror();

    int choice; //选择
    String girlName;//使用化妆品的人

    MakeUp(int choice, String girlName) {
        this.choice = choice;
        this.girlName = girlName;
    }

    @Override
    public void run() {
        try {
            makeup();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    private void makeup() throws InterruptedException {
        if (choice == 0) {
            synchronized (lipstick) {//获得口红的锁
                System.out.println(this.girlName + "获得口红的锁");
                Thread.sleep(1000);
            }
            synchronized (mirror) {//一秒后想要镜子
                System.out.println(this.girlName + "获得镜子的锁");
                Thread.sleep(1000);
            }
        } else {
            synchronized (mirror) {//获得镜子的锁
                System.out.println(this.girlName + "获得镜子的锁");
                Thread.sleep(1000);
            }
            synchronized (lipstick) {//一秒后想要口红的锁
                System.out.println(this.girlName + "获得口红的锁");
            }
        }
    }
}